formbook | 6b112d62c9d5722e71733aebafd86f5ac0a45c71a6776650f9505e239b7d8f8e

General

Target

SHIPPING INVOICE pdf.exe
Size

755KB
MD5

d1204a9f635be18db9fda3f9726a3df9
SHA1

652ed4051c171c6decdbbe8a5c724831574453f7
SHA256

6b112d62c9d5722e71733aebafd86f5ac0a45c71a6776650f9505e239b7d8f8e
SHA512

629a76bde6aa37ba01c91ea598e41c2c2175ce47deca8f4173534bc439f819e80adc0d83caba5745a94b580c3701c8297d776a553741d5f9506062068ed6e966

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.jerkerings.com/mnf/

Decoy

freeedomfencemn.com

corse-pollens.com

gellyc.com

mindplusgrind.com

gzrikang.com

horukac.com

aswaqina.com

lawofficeofjimhankey.com

everyoneshoroscope.com

freisaq.com

khimyoga.com

usmarketingdigital.com

artistagospel.com

stop-moskitos.com

sertecbasicos.com

mvmontessori.net

duke-a-website.com

arcaneunlocked.com

turnershydrographics.com

bipbopbling.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3740-4-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/3740-5-0x000000000041EB10-mapping.dmp	formbook
behavioral2/memory/1168-7-0x0000000000000000-mapping.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

SHIPPING INVOICE pdf.exeSHIPPING INVOICE pdf.exechkdsk.exe

description	pid	process	target process
PID 652 set thread context of 3740	652	SHIPPING INVOICE pdf.exe	SHIPPING INVOICE pdf.exe
PID 3740 set thread context of 3028	3740	SHIPPING INVOICE pdf.exe	Explorer.EXE
PID 1168 set thread context of 3028	1168	chkdsk.exe	Explorer.EXE

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2224 schtasks.exe
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

pid	process
2224	schtasks.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

Processes:

SHIPPING INVOICE pdf.exechkdsk.exe

pid	process
3740	SHIPPING INVOICE pdf.exe
3740	SHIPPING INVOICE pdf.exe
3740	SHIPPING INVOICE pdf.exe
3740	SHIPPING INVOICE pdf.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe
1168	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

SHIPPING INVOICE pdf.exechkdsk.exe

pid process

3740 SHIPPING INVOICE pdf.exe
3740 SHIPPING INVOICE pdf.exe
3740 SHIPPING INVOICE pdf.exe
1168 chkdsk.exe
1168 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SHIPPING INVOICE pdf.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 3740 SHIPPING INVOICE pdf.exe
Token: SeDebugPrivilege 1168 chkdsk.exe

description	pid	process
Token: SeDebugPrivilege	3740	SHIPPING INVOICE pdf.exe
Token: SeDebugPrivilege	1168	chkdsk.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

SHIPPING INVOICE pdf.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 652 wrote to memory of 2224	652	SHIPPING INVOICE pdf.exe	schtasks.exe
PID 652 wrote to memory of 2224	652	SHIPPING INVOICE pdf.exe	schtasks.exe
PID 652 wrote to memory of 2224	652	SHIPPING INVOICE pdf.exe	schtasks.exe
PID 652 wrote to memory of 3740	652	SHIPPING INVOICE pdf.exe	SHIPPING INVOICE pdf.exe
PID 652 wrote to memory of 3740	652	SHIPPING INVOICE pdf.exe	SHIPPING INVOICE pdf.exe
PID 652 wrote to memory of 3740	652	SHIPPING INVOICE pdf.exe	SHIPPING INVOICE pdf.exe
PID 652 wrote to memory of 3740	652	SHIPPING INVOICE pdf.exe	SHIPPING INVOICE pdf.exe
PID 652 wrote to memory of 3740	652	SHIPPING INVOICE pdf.exe	SHIPPING INVOICE pdf.exe
PID 652 wrote to memory of 3740	652	SHIPPING INVOICE pdf.exe	SHIPPING INVOICE pdf.exe
PID 3028 wrote to memory of 1168	3028	Explorer.EXE	chkdsk.exe
PID 3028 wrote to memory of 1168	3028	Explorer.EXE	chkdsk.exe
PID 3028 wrote to memory of 1168	3028	Explorer.EXE	chkdsk.exe
PID 1168 wrote to memory of 2116	1168	chkdsk.exe	cmd.exe
PID 1168 wrote to memory of 2116	1168	chkdsk.exe	cmd.exe
PID 1168 wrote to memory of 2116	1168	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3028

C:\Users\Admin\AppData\Local\Temp\SHIPPING INVOICE pdf.exe
"C:\Users\Admin\AppData\Local\Temp\SHIPPING INVOICE pdf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:652

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tWlheYLXvcta" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6AD0.tmp"
3⤵
- Creates scheduled task(s)
PID:2224

C:\Users\Admin\AppData\Local\Temp\SHIPPING INVOICE pdf.exe
"C:\Users\Admin\AppData\Local\Temp\SHIPPING INVOICE pdf.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3740

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1168

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\SHIPPING INVOICE pdf.exe"
3⤵
PID:2116

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6AD0.tmp
MD5
3ec9a2fcbccef6f27329e5416e65de14

SHA1
5b57f437d694b0384e2aec0f499524876ece8bf8

SHA256
d9189d759a5f98bfd064912fe4ac2533be5520c5e891a2463b96ea3ca890a32a

SHA512
454448ae2afc2c8cd4b3eaf857a040bece0fe2bb7d493a8e1de9e1e6b97a7daa5aded7fa00700815c794585b2a73c9bec6486415e325362363fee5a16e182267

Download Submit
memory/1168-7-0x0000000000000000-mapping.dmp

Download
memory/1168-8-0x0000000000C90000-0x0000000000C9A000-memory.dmp

Filesize
40KB

Download
memory/1168-9-0x0000000000C90000-0x0000000000C9A000-memory.dmp

Filesize
40KB

Download
memory/2116-10-0x0000000000000000-mapping.dmp

Download
memory/2224-2-0x0000000000000000-mapping.dmp

Download
memory/3740-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3740-5-0x000000000041EB10-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads